/*
 * @(#)GridMap.java	1.0 May 5, 2008
 *
 *	The MIT License
 *
 *	Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com>
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:
 *
 *	The above copyright notice and this permission notice shall be included in
 *	all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *	THE SOFTWARE.
 */
package org.eoti.util;

import java.util.*;

public class GridMap<VALUE> extends DualKeyHashMap<Integer,Integer,VALUE>
{
	protected ValueRange<Integer> rangeX, rangeY;
	
	public GridMap(int xWidth, int yWidth)
	{
		super(xWidth * yWidth);
		this.rangeX = new ValueRange<Integer>(0, xWidth);
		this.rangeY = new ValueRange<Integer>(0, yWidth);
	}

	public GridMap()
	{
		super();
	}

	public GridMap(GridMap<VALUE> map)
	{
		super(map);
	}

	public VALUE put(Integer xKey, Integer yKey, VALUE value)
	{
		if(xKey < rangeX.getStart())
			rangeX.setStart(xKey);
		if(xKey > rangeX.getEnd())
			rangeX.setEnd(xKey);
		if(yKey < rangeY.getStart())
			rangeY.setStart(yKey);
		if(yKey > rangeY.getEnd())
			rangeY.setEnd(yKey);

		return super.put(xKey, yKey, value);
	}

	public ValueRange<Integer> getXRange(){return rangeX;}
	public ValueRange<Integer> getYRange(){return rangeY;}
}
